docs: def neighbors(self, subid, params=None):
          ''' v1/server/neighbors
          GET - account
          Determine what other subscriptions are hosted on the same physical
          host as a given subscription.
  
          Link: https://www.vultr.com/api/#server_neighbors
          '''
          params = update_params(params, {'SUBID': subid})
          return self.request('/v1/server/neighbors', params, 'GET')